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Communication: FOURTH PERIOD

A randomized 25 question test from a pool of 761 questions, good luck!
Which of the terms below can be best described as a device with an assigned tag name?
Due to the uncomplicated nature of the Modbus frame structure, it requires a simple access method. Which of the access methods below is a method that this frame structure supports?
Modbus protocol can implement data encapsulation over IP based networks. Which of the statements below is an advantage of using encapsulation?
The addition of BCC to the message frame increases the efficiency of detecting errors in transmissions. which one of the error check systems employs a calculated total by the receiver in comparison to the total of the received data?
The installation of a SCADA system has several difficulties associated with it. Which of the challenges below would be best defined as one that accommodate with the amount data throughput?
Digital signals are, either specific or transitory, voltage levels represent states of logic. Which of the signal encoding methods below uses the conversion of dc voltage levels to ac to represent logic states?
Software for programming or configuration is an integral part of any HMI. Which of the interfaces below can be best described as allowing the creation of new projects?
Ethernet/IP is based on a protocol that the higher OSI layers of DeviceNet uses. Which of the answers below is the correct acronym for this protocol?
In a motor control function block program, conditional block are used. Which of the answers below is best described as a condition that must remain TRUE for a device can stay activated?
The installation of a SCADA system has several difficulties associated with it. Which of the challenges below would be best defined as one that implements two separate communication systems to ensure redundancy for critical processes?
There are several layers in the DCS architecture. Which of the levels below would have direct control over the systems FCEs?
Which of the recommended standards below would be best described as an unbalanced transmission system?
Which of the terms below can be best described as a device with an invalid tag name tag name?
Baseband NRZ signalling is the standard for all physical connections with Ethernet. Which of the signalling methods below has the disadvantage of losing the clock signal when spaces are transmitted for an extended series?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would make the I/O of a DCS and it's associated controllers communicate?
The limits of a OUT parameter status field has several different classifications. Which of the classifications below can be described as the indication of a parameter above the URV?
HMI networks are needed to expand or contract as required over their lifetime of use. Which of the networking types below will typically contain a high level of encryption andsecurity
Which answer below is best described as the RS-232 standard for voltage range to transmit a "Space"?
Which answer below is best described as the RS-485 standard for voltage range to receive a "Mark"?
Which of the topology connections is the most typical for a HART communication device?
There are several advanced alarm methods available that provide a greater level of functionality. Which of the methods below can be used if an interpretation of the plant can approximate its state?
Communication that is wireless in a SCADA system is common. Which of the communication methods below would be best defined as one that is limited to 10 km or less?
Which of the terms below best describes the electromagnetic noise that corrupts transmitted wave forms with echoes of itself?
Each network layer for a DCS has it's own specialized equipment or software. Which of the layers below would make use of a HART protocol?
Which of the answers below best represents the recommended standard that is generally used with an RJ-45 connector?